Gematria Calculation Result for silver secret code cracked checkmate on Roman Numeral

This is calculated by summing each letter's value: s(0) + i(1) + l(50) + v(5) + e(0) + r(0) + (0) + s(0) + e(0) + c(100) + r(0) + e(0) + t(0) + (0) + c(100) + o(0) + d(500) + e(0) + (0) + c(100) + r(0) + a(0) + c(100) + k(0) + e(0) + d(500) + (0) + c(100) + h(0) + e(0) + c(100) + k(0) + m(1000) + a(0) + t(0) + e(0).